Module: Glint::Util

Defined in:
lib/glint/util.rb

Class Method Summary collapse

Class Method Details

.check_port(port) ⇒ Object 



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# File 'lib/glint/util.rb', line 12

def self.check_port(port)
  begin
    socket = TCPSocket.open('127.0.0.1', port)
    socket.close
    return true
  rescue Errno::ECONNREFUSED
    return false
  end
end

.empty_port ⇒ Object 



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# File 'lib/glint/util.rb', line 5

def self.empty_port
  s = TCPServer.open(0)
  port = s.addr[1]
  s.close
  port
end

.wait_port(port) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/glint/util.rb', line 22

def self.wait_port(port)
  100.times do |n|
    return true if check_port(port)
    sleep 0.1
  end

  raise RuntimeError.new("Could not open the port: #{port}")
end